Collaborative Project Between Pokémon Sleep and Sauna Ikitai Launches to Explore Health Benefits

Exciting Collaboration: Pokémon Sleep and Sauna Ikitai Unite for Research

Today marks the launch of an innovative project named 'SatoSu,' as the renowned sleep game application, Pokémon Sleep, developed by the Pokémon Company, teams up with Sauna Ikitai, Japan's leading sauna search app. This collaboration aims to delve deeper into the relationship between sauna-induced relaxation and improved sleep quality.

A Milestone in Sleep Gaming

As of July 20, 2025, Pokémon Sleep celebrates its second anniversary. The application aims to enhance sleep experiences by offering engaging gameplay that motivates users to track their sleep patterns. In partnership with Sauna Ikitai, this initiative seeks to further understand how sauna activities contribute to better sleep health.

Introducing 'SatoSu': What to Expect

The SatoSu project will hold a data collection phase from August 19 to September 18, 2025. During this period, participants will engage in a study designed to explore the connections between sauna usage and sleep. Users will be invited to complete surveys, post their sauna experiences on Sauna Ikitai, and utilize Pokémon Sleep to gather their sleep data. This research aims to assist in promoting better lifestyle habits and raising awareness about health.

Goal of the Project

Recent studies have highlighted the calming effects that come from a sauna session, known as 'totonou' in Japanese. This collaboration centers on collecting data utilising user feedback and sleep measurement, thereby shedding light on how these practices influence overall health and relaxation. Participants will help by responding to surveys and providing sleep data throughout the research duration.

Participant Recruitment

Individuals interested in contributing to the SatoSu initiative can join via the following link to the survey:
Survey for SatoSu Project
Participants are encouraged to submit their responses anytime during the specified recruitment period, as entries are not on a first-come, first-served basis. However, due to potential traffic, users may need to attempt accessing the survey more than once.

How to Participate

In order to participate in this study, individuals will need to:

- Fill out the survey
- Share their sauna experiences through Sauna Ikitai during the study period
- Record their sleep data using Pokémon Sleep for over ten days

Exciting Campaign for Participants

As an added incentive, participants who meet the stipulated requirements during the campaign will have a chance to win a special SatoSu sauna hat. A total of 100 unique sauna hats will be randomly distributed among eligible contestants who complete the requirements.

Important Notes

- Each participant can only register once.
- Images provided may not accurately represent actual items.
- The hats are exclusive and not available for purchase.
- The campaign is subject to changes or cancellations without prior notice.

About Pokémon Sleep

Pokémon Sleep transforms the act of sleeping into an enjoyable game. It encourages users to adopt a healthy sleep routine, making the morning experience something to look forward to.

Product Information

- Title: Pokémon Sleep
- Price: Free to play (in-app purchases available)
- Developer: SELECT BUTTON Inc.
- OS Compatibility: iOS and Android
- Genre: Sleep Game
- Languages Supported: Japanese, English, Spanish, French, German, Italian, Korean, Chinese (Traditional)
- App Store Link
- Official Website

About Sauna Ikitai

Founded by four sauna enthusiasts, Sauna Ikitai stands as Japan's largest sauna portal site, offering a comprehensive database of saunas across the country. Users can filter sauna facilities according to specific preferences and track their sauna experiences.

Sauna Ikitai by the Numbers

As of January 17, 2025: 14,137 registered facilities and 7 million sauna experience entries. Users can locate saunas based on over 100 criteria, including temperature and facility amenities.

This collaboration hopes to advance our understanding of the vital connection between sauna practices and sleep, making health and relaxation more accessible and enjoyable for everyone.